Brianna paid $18.89 for a pair of sandals. she bought a pair of hiking boots that cost $12 more than her sandals. how much did brianna pay for the two pairs of shoes? how can estimation be used to make sure the answer is reasonable? a. brianna paid $42.89. estimation: $19 + $12 = $31 $31 + $12 = $43 brianna paid about $43 for the shoes. b. brianna paid $25.78. estimation: $19 – $12 = $7 $19 + $7 = $26 brianna paid about $26 for the shoes. c. brianna paid $49.78. estimation: $19 + $12 = $31 $31 + $19 = $50 brianna paid about $50 for the shoes. question resources